@book{47430,
	author = {Robertson, Mary. and Perkins, W. E.},
	title = {Effective correspondence for colleges},
	publisher = {South-Western Pub. Co.},
	year = {c1983.},
	address = {Cincinnati},
	edition = {5th ed.},
	note = {Earlier editions by C. F. Walker published under title: Practical business correspondence for colleges.}
}